A light emitting apparatus (8) includes one or more light emitting chips
(10) that are disposed on a printed circuit board (12) and emit light
predominantly in a wavelength range between about 400 nanometers and
about 470 nanometers. The printed circuit board includes: (i) an
electrically insulating board (14); (ii) electrically conductive printed
circuitry (20); and (iii) an electrically insulating solder mask (22)
having vias (24) through which the one or more light emitting chips
electrically contact the printed circuitry. The solder mask (22) has a
reflectance of greater than 60% at least between about 400 nanometers and
about 470 nanometers.